Chenoprosopus is a genus of extinct cochleosauridae that lived during late Carboniferous and early Permian periods.[1] Two known species of Chenoprosopus are C. milleri and C. lewisi. Chenoprosopus lewisi was described in the basis of a virtually complete skull with maximum skull length of 95 mm.[2] It is significantly smaller than Chenoprosopus milleri and was differentiated from that taxon by Hook (1993) based on sutural patterns of the skull roof. Hook also mentioned the reduced size of the vomerine tusks differentiated C. lewisi from C. milleri, but the different size of these tusks may be different ontogenetic stages of growth.[2] Many of other cochleosaurids from the same time period have an elongated vomer and wide and elongate choana.[3] However, Chenoprosopus is distinguished by its more narrowly pointed snout and separation between the nasal from the maxilla by the broad lacrimal-septomaxilla contact.[2]
The Chenoprosopus name means as “goose short face” based on Greek cheno as a goose[4] and prosopus as a short face.[5]
^Reisz, R.R. (2005). "A New Skull of the Cochleosaurid Amphibian Chenoprosopus (Amphibia: Temnospondyli) from the Early Permian of New Mexico". New Mexico Museum of Natural History and Science Bulletin No. 30
^ abcHook, Robert (1993). "Chenoprosopus lewisi, A New Cochleosaurid Amphibian (Amphibia: Temnospondyli) from the Permo-Carboniferous of North-Central Texas". Annals of Carnegie Museum. 62: 273–291.
^Milner, Andrew (1998). "A Cochleosaurid Temnospondyl Amphibian from the Middle Pennsylvanian of Linto, Ohio, USA". Zoological Journal of the Linnean Society. 122 (1–2): 261–290. doi:10.1006/zjls.1997.0121.
^Brown, Roland (1954). Composition of Scientific Words. Washington. p. 16025.
and early Permian periods. Two known species of Chenoprosopus are C. milleri and C. lewisi. Chenoprosopus lewisi was described in the basis of a virtually...
Cochleosaurus, of the late Carboniferous of central Europe and Nova Scotia Chenoprosopus milleri, of the late Carboniferous and early Permian of New Mexico Nigerpeton...
bohemicus by Sequiera (2003) places Cochleosaurus as a sister taxa to Chenoprosopus. These species are thought to fall into the larger clade Cochleosauridae...
groups to the crown group that consists of Cochleosaurus, Nigerpeton and Chenoprosopus. The characters that diagnose this family are thought to be pineal foramen...
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